7b-b-b=3b-4-b+31

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Solution for 7b-b-b=3b-4-b+31 equation:


Simplifying
7b + -1b + -1b = 3b + -4 + -1b + 31

Combine like terms: 7b + -1b = 6b
6b + -1b = 3b + -4 + -1b + 31

Combine like terms: 6b + -1b = 5b
5b = 3b + -4 + -1b + 31

Reorder the terms:
5b = -4 + 31 + 3b + -1b

Combine like terms: -4 + 31 = 27
5b = 27 + 3b + -1b

Combine like terms: 3b + -1b = 2b
5b = 27 + 2b

Solving
5b = 27 + 2b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-2b' to each side of the equation.
5b + -2b = 27 + 2b + -2b

Combine like terms: 5b + -2b = 3b
3b = 27 + 2b + -2b

Combine like terms: 2b + -2b = 0
3b = 27 + 0
3b = 27

Divide each side by '3'.
b = 9

Simplifying
b = 9

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